Electric accumulator.



G., L.I& G. J. A. FULLER. ELECTRIC ACCUMULATOR. -APHLlcAnoN FILED Nov. 27.1915.

Pntened Sept. 12

2 SHEETS-SHEET 1' GA, L. & 6.1. A. FULLER. ELECTRlC ACCUMULATOR. APPLICATION FILED Nov.27f1915.

Lw'nsls,

2 SHEETS-SHEET 2.

GEAGE FULL-EE, LEONARD FULLER, ANB LONTN, ENGL.

ACQUE LEOJARD FULLER, zum DREW MULLER, snjects mi' K tmdes are constluced in the fofm of bk,

cjy sst-mug; cell of material of h@ elecizro. "i on. Suppm; p is compesh ammad with continuous or ump if@ lead :m its dsintagraton 1:5. 'plete y preventa owing to he nmmm whicgi is supported..

invention. is bami core of o: 5

the dvwings a wil imei@ 01' mnt com Al O other when assembled by layers of porous or other suitable material of a character capa` ble of resisting the acid of the electrolyte employed in the cell. Such layers may take the form of strips or plates g of wood having one side ribbed or corrugated, as shown at g, Fig. Q, and the other plain, the ribbed sides of which may conveniently be turned toward the negative electrodes so as to permit free access of the electrolyte to these surfaces. By this means all possibility of the peroxid or other active mat 'ial getting dislodged and falling to the boltom of the cell is prevented as it is adequately supported even on its exposed surfaces.

Before placing the assembled electrodes into their cell v'-, Fig. l, they may, where required, yand as shown in Figs. l and f2. be bound tightly together by means of a plurality of bands of insulating material for example insulated lead, celluloid, rubber or ebonite rings /L which pass around the outer lead armored faces c of the separate blocks.

It will thus be manifest that the improved block electrodes may be fitted together to provide an extremely strong mechanical whole, which can be subjected to rough handling and which even when left in inexperienced hands may be short circuited or even reversed or allowed to stand idle in a discharged state without appreciable deterioration, as the electrodes cannot buckle or disintegrate owing to their construction and the complete manner in which they are armored and the active material supported in place.

lVhat we claim as new and desire. to secure by Letters Patent of the United States l. A storage battery electrode of sectional block form, having an interior metallic support, va mass of active material surrounding and embedding the support.. and outstancing therefrom, and a continuous wall of lead covering a portion of the surface of the mass of active material with the remainder of said surface exposed7 whereby a plurality of electrodes may be assembled into the form of a compact geometric solid with the exposed walls of active material of the different electrodes in close face toface relation and the continuous lead walls individual to the electrodes outermost and constituting an exterior support for the active material between the latter and surrounding electrolyte, thus avoiding exterior wrappings.

2. A storage battery electrode of sectional block form including a mass of active material with the electrode shaped for assemblage with other electrodes into a compact geometric solid, the electrode having a lead wall constituting the outer wall in the assemblage of electrodes, and also constituting a support for the active material between the latter and the electrode exterior thereto, whereby external Wrappings for the assembled electrodes are avoided.

3. A storage battery comprising a plural ity of electrodes of block form eachrepreseating a geometric section of a geometric solid and assembled around a longitudinal center line in close face to face relation with interposed insulation between said faces, and xach electrode having that face directed away from the center line of the assembled electrodes provided with a wall of lead individual to the electrode and together with the like lead walls of the other elec rodes constituting a practically continuous lead wall inclosing the electrodes and having` its continuity broken solely along the lines of division and separation of the eleci trodes, whereby external wrappings for the electrodes are avoided.

fl. A storage battery comprising a suitable container, a plurality of electrodes therein grouped about a. common center and separate from the Valls of the container, each electrode consisting of an inner core having laterally extended terminal heads and an outer wall of lead connecting the outer edges of the heads, and a mass of active material embedding the core and extending laterally therefrom to the lead wall and the other edges of the heads, the surface of the active material being exposed except where covered by the lead wall and said exposed surfaces being arrangedin close spaced face to face relation to the cor responding surfaces of the neighboring electrode or electrodes, each electrode cor responding in shape to the others and being in the Jr'orm of a block constituting ay regu` defined bi lar section of a geometric solid the assembled electrodes, and exterior hindi ing means for holding the electrodes in the assembled condition against relative displacement.

In testimony whereof we vhavehereunto signed our naines to this specification.

GEORGE FULLER. LEONARD FULLER. GEORGE JOHN ANDREW FULLER. 

